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What is a regular expression for a MAC Address?
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The standard (IEEE 802) format for
printing MAC-48 addresses in
human-friendly form is six groups of
two hexadecimal digits, separated by
hyphens - or colons :.
So:
^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$
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How to get RGB values from UIColor?
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I posted some sample code in this question to get this working in non-RGB contexts: stackoverflow.com/questions/4700168/…
– Jesse Rusak
Jan 15 '11 at 15:28
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stop all instances of node.js server
This is my first time working with Node.js and I ran into this problem:
16 Answers
16
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How to activate an Anaconda environment
...or your environment (so that it gets the right Python from the environment and Scripts\ on Windows).
Imagine you have created an environment called py33 by using:
conda create -n py33 python=3.3 anaconda
Here the folders are created by default in Anaconda\envs, so you need to set the PATH as:
s...
When should I use nil and NULL in Objective-C?
... technically, they are exactly equal, you can send messages to both nil and to NULL. Idiomatically though nil is usually used to represent an object
– cobbal
Oct 14 '09 at 5:43
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Pycharm does not show plot
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Just use
plt.show()
This command tells the system to draw the plot in Pycharm.
Example:
plt.imshow(img.reshape((28, 28)))
plt.show()
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Java Stanford NLP: Part of Speech labels?
... adverb.
That's for english. For chinese, it's the Penn Chinese Treebank. And for german it's the NEGRA corpus.
CC Coordinating conjunction
CD Cardinal number
DT Determiner
EX Existential there
FW Foreign word
IN Preposition or subordinating conjunction
JJ Adjective
JJR ...
How to disable Google Chrome auto update?
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On your Chrome browser's address bar, type in 'about:plugins' and hit ENTER.
Find the plugin called 'Google Update' and click disable.
Restart your browser for the changes to take effect.
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C++ template constructor
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As far as I understand, it's impossible to have it (because it would conflict with the default constructor - am I right?)
You are wrong. It doesn't conflict in any way. You just can't call it ever.
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In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?
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Just note this isn't in the standard library.
– Chris Lloyd
Feb 1 '11 at 11:34
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